Paper-pulp engine



(No Model.) 2 SheetsSl 1eet 1.

J.LAMONTAGYNE.- PAPER PULP ENGINE;

No. 568,358. Patented Sept. 2 9, 1896.

(No Model.) 8 2 Sheets-Sheet 2.

J. LAMONTAGNE.

PAPER PULP ENGINE No. 568,358. Patented Sept. 29, 1896.

UNITED STATES,

PATENT OFFICE.

JOSEPH LAMONTAGNE, OF GILBERTVILLE, MASSACHUSETTS, ASSIGNOR OF TlVO-THIRDS TO WILLIAM BOURBRIANT, OF SAME PLACE, AND FELIX BOMBARD, OF WARE, MASSACHUSETTS.

PAPER-PU LP ENGINE.

SPECIFICATION forming part of Letters Patent No. 568,358, dated September 29, 1896.

Application filed March 28,1896. Serial No. 585,168. (No model.)

To all whom it may concern.-

'Be it known that I, J OSEPH LAMONTAGNE, a subject of the Queen of Great Britain, residing at Gilbertville, in the county of Hampshire and State of Massachusetts, have invented certain new and useful Improvements in Paper-Pulp Engines, of which the following is a specification.

My invention relates to paper-pulp engines or machines for making pulp and preparing it to be used in the manufacture of paper, and the object of my invention is to improve upon the construction of paper-pulp engines as now ordinarily made, and to provide a paper-pulp engine of effective operation, and

one which requires but little power to operate it 3 and my invention consists in certain novel features of construction of my paperpulp engine, as will be hereinafter fully described.

Referring to the drawings, Figure 1 is a plan view of a double paper-pulp engine embodying my improvements. Fig. 2 is a central longitudinal section on line 2 2, Fig. 1,

looking in the direction of arrow a, same figure. Fig. 3 is a side view of one end of the engine, taken at a point indicated by line 3 3, Fig. 1, looking in the direction of arrow a, same figure. Fig. 4. is a cross-section on line 0 4 4, Fig. 1, looking in the direction of arrow 6, same figure. Fig. 5 is a horizontal section through the trough, taken at a point indicated by line 5, Fig. 3, the rotarydisks or heads being removed. Fig. 6 'is a modified con- 3 5 struction of one of the rotary disks or heads,

and Fig. 7 shows another modified construction.

It will be understood that in the manufacture of pulp for paper and in preparing it 0 ready for the finisher the pulp is placed in a large vessel or trough containing water and is caused to pass under a rotary cylinder provided with a number of teeth or ridges running across it, which grind and work up the 5 pulp or other material. 7

In the ordinary construction of the rotary cylinder of a paper-pulp engine considerable power is required to rotate the same.

One of the objects of my invention is to construct the cylinder or device, which acts to grind and work up the pulp or other ma terial, in such a manner that much less power is required to rotate it.

I have shown in the drawings my improvements applied to a double paper-pulp engine, 5 5 but it will be understood that they may also be used in construction with a single paperpulp engine.

As the two parts of the double paper-pulp engine shown in the drawings are duplicates 6o of each other and of similar construction and operation a description of one part will answer for both.

In the accompanying drawings, 1 is a vessel or trough of oblong shape, and in this instance is provided with a side trough 2 at each end, on opposite sides. Eachside trough 2 is provided with an inclined bottom and an opening 3 at its lower inner end leading into the main trough 1. (See Figs.3and 5.) The opposite end of each side trough 2 has an opening or gateway 4: on its inner side leading into the main trough 1, and a removable gate 5, sliding in vertical grooves 6 in the side of the trough 1, closes said opening 4.

The main trough 1 is open at both ends and is provided with removable gates 7, sliding in vertical grooves 8 in the sides of the trough to close said open ends- If desired, either gate 7 may be provided with wire-net- 8o ting, as shown in Fig. 4, to act as a strainer for the material passing out of the open end of the trough 1.

The bottom of the trough 1, in case of a double paper-pulp engine, as shown in the drawings, is made as shown in sectional view, Fig. 2, having the two curved or circular portions 9, the curvature of which conforms to the curvature of the rotary disks or heads 10 10', which are fast on a central shaft 11, mounted to revolve in bearings 12 on the top of the sides of the trough. (See Figs. 1 and 3.)

. The curved portions 9 of the bottom. of the trough 1 may be provided withtransverse ridges or knives, (not shown,) which act as 5 cutting surfaces to cut and tear the material being made into pulp.

A central transverse division or partition 14,-extending diagonally in the bottom of the trough 1, between the curved portions 9, (see Fig. 5,) divides the trough 1 into two parts and causes the water and the material being worked up into pulp to pass from one side trough 2 into one curved portion 9, and then out of said portion into the end of the trough 1. and through the gateway 4 into the other side trough 2, and through the opening 4 therein into the other curved portion 9 in the trough 1, and then out of said portion into the end of the trough, and through the opening or gateway 4 into the other side trough 2, as indicated by arrows, Fig. 1. Thus a continuous circulation of the material is kept up through the machine until it is in condition to be drawn off ready for the finisher, when one of the gates 5 closing the opening 4 is closed and one of the gates 7at the end of the trough 1 is raised, to allow the material to pass out of the open end of the trough 1.

I will now describe the construction and operation of the rotary heads 10 and 10, which carry a series of cylinders or rolls 15, provided with ridges or teeth thereon. Each pair of heads 10 and 10 are rigidly secured together by bars 16 regularly arranged and extending between the two disks 10 and 10, and having their ends turned down to extend through holes in said disks, and threaded to receive nuts 17, fitting in countersunk holes 18 in the outer faces of the disks. (See Fig. The peripheries of the disks 10 and 10 are in this instance provided with sharpened or pointed teeth 19, and the two pairs of disks are arranged so that the teeth 19 thereon will mesh, as shown in Fig. 2, and the driving of one pair of disks 10 and 10, to communicate a rotary motion thereto, will also communicate a rotary motion to the other pair of disks 10 and 10 by the meshing of the teeth 19.

The outer ends of the bars 16 preferably extend to the circumference of the disks 10 and 10 and are beveled or sharpened, as shown at 10, so as not to interfere with the meshing of the teeth 19, and to act as cutting surfaces. The beveled sides of the bars 10 act to push along the material in the curved portion 9, as the disks 10 and 10 rotate, and to deliver it on to the platform or raised portion 1 of the trough 1. (See Fig. 2.) A 1ongitudinal ridge or shoulder 16 on each bar 16 serves to prevent the material from falling back between the disks 10 and 10 into the curved portions 9.

Each disk or head 10 and 10 is preferably provided on its inner face with a series of grooves 20, extending from near the center or axis toward the circumference. The grooves 20 are preferably made curved and in pairs, as shown in Fig. 2, but they may be made straight, as shown in Fig. 7. Into the grooves 20 extend the ends or journals of the cylinders or rolls 15, which are free to rotate in said grooves and also to slide or move in said grooves to carry the rolls 15 toward the circumference of the disks 10 and 10 and toward the center or axis thereof as said disks (See Fig. 2.)

rotate. The outer ends of the grooves 20 extend far enough to bring the circumference of the rolls 15 011 a line with the circumference of the disks 10 and 10 when said rolls are in their outward position, as shown in Fig. 2.

In the case of the double grooves 20 (shown in Fig. 2) the rolls 15 move out in one groove and back in the other, while in the case of the single grooves 20 (shown in Fig. 7) the rolls move out and in in the same groove.

A feed roll or cylinder 21 is journaled in bearings at each end of the trough 1 at a point between the rotary disks 10 and 10 and the openings or gateways 4, leading into the side-troughs 2. These feed-cylinders 21 operate to move thematerial brought up from the curved portions 9 in the bottom of the trough by the rotation of the disks 10 and 10 toward the ends of the trough 1, to cause it to pass through the openings 4 into the side troughs 2, or out of the end of the trough 1.

The cylinders or rolls 21 may be belted to the shafts 11 of the disks 10 and 10, as shown in Fig. 1, or they may be driven independently. On one end of the shaft 11 of one pair of disks 10 and 10 are a fast and loose pulley 22 and 23, respectively, through which power is applied to the disks 10 and 10.

In Fig. (3 is shown one of the disks 10 or 10 without the grooves 20 for the grindingrolls 15 to slide in. With this construction the rolls are 3' ournalednear the circumference of the disks, and have a rotary motion with the disks and an independent rotary motion, but no sliding motion.

In case the machine shown in the drawings is used as a single machine one pair of disks 10 and 10 will be removed and the central transverse division or partition 14 will be changed to extend as indicated by dotted lines 14, Fig. 5, thus connecting the side trough 2 with the corresponding end of the trough 1 and causing the material to circulate from the side trough 2 into the contiguous end of the trough 1 and from the trough 1 into the same trough 2, &c.

The operation of my improved paper-pulp engine from the above description, in connection with the drawings, will be readily understood by those skilled in the art.

It will be understood that the details of construction of my machine may be varied if desired.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a paper-pulp engine, the combination with a trough having an opening leading out therefrom for the discharge of the contents of the trough, said opening provided with a removable gate, and a second trough extending on one side of the trough first mentioned, and openings between the troughs for the circulation of the contents thereof, from one trough to the other, and. a removable gate for closing one of said openings, of a pair of heads or disks mounted to rotate in one of said IIO troughs, and rigidly secured together by bars extending between said disks, and provided with grooves or slots in their inner surfaces, extending from near their centers toward their peripheries, and a series of cylinders or rolls having ridges or teeth thereon, and supported between said disks in the grooves or slots therein, and adapted to have a sliding and a rotating motion in said grooves, substantially as set forth.

2. In a paper-pulp engine, the combination with a central trough open at each end, and each end provided with a removable gate, and two side troughs on opposite sides of said central trough near the ends thereof, and openings between said central trough and side troughs for the continuous circulation of the contents of said troughs, said openings provided with removable gates, of two pairs of heads or disks mounted to rotate in said central trough, and provided with teeth on their peripheries which mesh into each other, and each pair of disks secured together by transverse bars, and having grooves or slots in their inner surfaces extending from near their centers to near their peripheries, and a series of cylinders or rolls having ridges or teeth thereon, mounted between each pair of disks in said grooves to rotate and slide therein, substantially as set forth.

J. LAMONTAGNE. Witnesses:

JOHN C. DEWEY, M. J. GALvIN. 

